CVE-2026-30332

Description

A Time-of-Check to Time-of-Use (TOCTOU) race condition vulnerability in Balena Etcher for Windows prior to v2.1.4 allows attackers to escalate privileges and execute arbitrary code via replacing a legitimate script with a crafted payload during the flashing process.

CVSS Vector

References

• https://github.com/B1tBreaker/CVE-2026-30332
• https://github.com/balena-io/etcher/issues/4500
• https://www.balena.io/security